JPH01232919A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To obtain a cleaner having a high cleaning characteristic having a high airtightness and capable of effectively reducing a fine dust included in exhaust air by forming an engaging part for applying the directional characteristic of a connecting part mutually by the holding frame members of an exhaust filter. CONSTITUTION:A storing part cover member 66 for closing a space 67 for storing the attached members of a cleaner main body 11 is opened. The cover body 31 of an exhaust part is removed to open the opening part of an exhaust chamber 16 and insert an exhaust filter 38 to an exhaust filter mounting part 33. When the vertical direction of an exhaust filter 38 is normal, the vertical erroneous mounting preventing protrusion 59 of a holding frame 41 does not abut against the engaging protrusion 39 of the exhaust filter mounting part 33 but the exhaust filter 38 is mounted on the exhaust filter mounting part 33. When the opening part 32 of an exhaust chamber 16 is closed by the exhaust part cover body 31, a rib form part 65 protruded on the internal face of this exhaust part cover body 31 is pressed by the seal packing of the exhaust filter 38 to air tightly contact and hold all the peripheral edge of the exhaust filter 38. Thereby, an assembling strength is enhanced to obtain a cleaner high in the cleaning characteristic of an air exhaust with a simple structure at low cost.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner equipped with an exhaust filter that can exhaust air with high purity.

(Prior art) This type of conventional electric vacuum cleaner filters the dust that is sucked in from the suction port of the vacuum cleaner body using a filter attached to the dust collection part of the vacuum cleaner body, and then collects the filtered air. A structure was adopted in which the air was exhausted from the exhaust side of the N8 blower to the outside of the vacuum cleaner body. In a vacuum cleaner having this conventional structure, the filter in the dust collecting section can capture dust of about 1 μm, but there is a problem in that fine dust smaller than that is discharged from the vacuum cleaner body along with the exhaust air. Conventionally, vacuum cleaners have a high-density, high-efficiency (HEPA) exhaust filter installed on the top of the vacuum cleaner body that is removable and airtightly communicated with the exhaust part of the vacuum cleaner body. C dust is captured in the collection chamber, and fine dust contained in the exhaust air is captured using a high-density, high-efficiency exhaust filter (0.3 μra DOP, collection efficiency of 99.97% or more). ) Commercial vacuum cleaners are known that are suitable for cleaning areas that require extremely high levels of cleanliness, such as clean rooms and hospital operating rooms. Furthermore, recently, even in ordinary households,
For health reasons, a vacuum cleaner with an extremely clean exhaust system is required, and a box-shaped mounting frame is installed on the outside of the exhaust section of the main unit, and this mounting traps fine dust of 0.3 μm or more. Vacuum cleaners equipped with high-density, high-efficiency exhaust filters are known.

In electric (1-way removal machines) equipped with the above conventional exhaust filter, the exhaust filter is usually pole @ (o, i - 0,3μm)
Because the main component is glass mH, it is easily damaged.
If a foreign object is inserted through the lattice-shaped ventilation part of the frame, the installation with this exhaust filter can be easily removed. However, there is a problem that the filter member may be damaged if external stress or impact is applied to the mounting frame. In addition, especially in a structure in which a frame is provided at the rear of the vacuum cleaner body, when the vacuum cleaner body is stored vertically with the rear part F [l [l], the frame is attached to the vacuum cleaner body. The frame needs to be strong enough to withstand vertical impacts, such as the load of It is composed of press molded materials, and when attached to the vacuum cleaner body, it is necessary to seal the joint between the frame and the vacuum cleaner body, and to seal the joint between the frame and the exhaust filter. There were problems such as poor workability when replacing the exhaust filter, poor installation workability of the frame, and poor manufacturability.

Therefore, the applicant of this patent proposed a method for cleaning the vacuum cleaner by removably storing the exhaust filter inside the vacuum cleaner body, so that there is no risk of the exhaust filter being damaged by impact from the outside of the vacuum cleaner body or insertion of foreign objects. A highly clean electric vacuum cleaner has been proposed that does not require increased strength, has high airtightness, and can reliably reduce fine dust contained in exhaust air.

(Problem to be Solved by the Invention) Exhaust filter 5 formed inside the vacuum cleaner body described in F
In the structure where the exhaust filter is attached to the A@ section,
The width of the exhaust filter mounting part becomes narrower toward the inner end due to the handling slope of the molding, and the holding frame that holds the filter member of this exhaust filter is also adjusted to match the handling slope of the exhaust filter insertion part (insertion). Since it is necessary to make the width narrower at the front end and wider at the rear end after insertion, the holding frame of the exhaust filter is molded into a body, and in particular, the filter member of the exhaust filter is glued to the inner circumference of the holding frame. It is difficult to mold a structure with a protruding fixing part etc. for the holding member.Therefore, it is possible to form this holding member with divided holding frame members, but if the holding frame member is simply formed separately, it will be difficult to assemble the holding frame member. There is a problem in that it takes a lot of time to assemble the exhaust filter because it needs to be oriented in the same direction.

The present invention has been made in view of the above problems, and the holding frame of the exhaust filter is formed by bonding the same holding frame members to each other, thereby increasing the strength of the exhaust filter and improving ease of assembly. The purpose of the present invention is to provide a highly clean vacuum cleaner that can reliably attach the exhaust filter to the filter attachment part without damaging the exhaust filter, and can reduce fine dust contained in the exhaust air. It is said that

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the F-opening purpose, the vacuum cleaner of the present invention has an electric feed I! an electric blower storage section incorporating one electric blower; a dust collection section installed with a removable dust collection filter that is formed on the negative pressure side of the electric blower storage section and collects dust sucked in from the suction port; An exhaust filter that is located between the exhaust side of the electric blower section and the exhaust section that communicates with the outside, and has a draft angle widened at the frontage side that can be opened and closed, and the exhaust filter is attached to the exhaust filter so that it can be inserted and removed from the opening. The exhaust filter is attached to a filter member and the periphery of the filter member is airtightly held, and the insertion tip side is formed narrower than the nXim'tta side, and the exhaust filter It consists of a #8 rectangular holding frame having both side edges that match the molded draft angle of the filter mounting part, and the holding frame of the exhaust filter controls the direction of force applied to the mounting part of the exhaust filter of the main body. It consists of a pair of holding frame members of the same shape and divided into parts, and this pair of holding frame members is characterized by forming an engaging part that gives a joining direction (d) at the joint part, and this -. A pair of holding frame members are engaged with each other at their engaging portions to form a holding frame, and a filter member is adhered to the inside of this holding frame.

Further, in the vacuum cleaner of the present invention, the retaining portions of the pair of holding frame members forming the exhaust filter holding frame have a hole portion formed on the joint surface that abuts each other and restricts the direction of mutual engagement. It is characterized by comprising a concave portion that engages with the protrusion.

(Function) In the vacuum cleaner of the present invention, the exhaust air that has M1 trapped dust by the dust collection filter is further captured by the exhaust filter, and the fine III dust contained in this exhaust air is trapped outside the vacuum cleaner body. The factors contained in the exhaust air can be significantly reduced, and this exhaust filter has a pair of holding frame members of the same shape that engage each other at their retaining parts and insert the joint into the exhaust filter mounting part. As a result, when the exhaust filter is inserted, the holding frame members are subjected to lateral pressure in the direction in which they are joined to each other due to the draft angle of the exhaust filter fitting portion, and the holding frame members are moved in the direction orthogonal to the fitting direction. Unlike the case where the exhaust filter is formed with a joint part, the exhaust filter does not come off from the joint part in the middle when installed, and it is easy to form a holding frame with side edges that match the draft angle. The joining direction of the holding frame member to be formed is ensured by the engagement of the engaging portions.

Further, in the vacuum cleaner of the present invention, the holding frame members that form the holding frame of the exhaust filter are butted against each other, and the engagement between the protrusions and the recesses on the joining surfaces ensures the joining direction and increases the joining strength.

(Example) The configuration of an embodiment of the present invention will be described with reference to the drawings.

In Fig. 1, reference numeral 11 denotes a vacuum cleaner body, which includes an electric blower storage section 13 containing an electric blower l+1 unit 12, and a removable dust collection filter formed on the negative pressure side of this electric blower storage section 13. 14, and an exhaust chamber 16 formed in communication with the positive pressure side of the electric blower storage section 13. A collecting part lid 17 for opening and closing the dust collecting part 15 is provided in the front part of the vacuum cleaner main body 11 so as to be openable and closable. A suction port 18 is formed to connect the connecting pipe in a rotatable manner. This dust collecting part lid body 17
The vacuum cleaner main body 11 removably holds the perforated plate part 19 of the bag-shaped dust collecting filter 14 facing the inside of the vacuum cleaner body 11, and the perforated plate part 19 of the dust collecting filter 14 is airtightly attached to the suction port 18. A holding member 20 is provided which is connected to the holding member 20 . Further, the suction port 18 is provided with a shutter 21 which can be opened and opened to close the suction port 18 when the hose connection pipe is not connected. Further, the dust filter 14 is treated with an antibacterial agent if necessary. Further, a partition member 22 is detachably attached to an airtight C between the dust collecting section 15 of the vacuum cleaner main body 11 and the electric blower storage section 13 via a backing 23, and the partition member 22 has a lattice shape. A ventilation section 24 is formed. This partition member 22 has a ventilation section 24.
A sub-dust collection filter 25 that has been treated with a deodorizing antibacterial agent, such as impregnating it with a deodorizing antibacterial agent, is removably provided on the side of the dust collecting section 15. Dust leaked from the dust filter 14 is captured.

Further, the periphery of the suction side of the electric blower 12 housed in the electric blower storage section 13 of the electric cleaning main body 11 is located around the ventilation hole section 27 of the partition wall 26 formed in the front part of the electric blower storage section 13. They are airtightly abutted via a backing 28. In addition, the rear of this electric feeder Ji [12 is a support wall 2
9 via a backing 30. The exhaust chamber 1G is located at the rear of the electric blower storage section 13.
is formed in communication with a ventilation portion (not shown) of the surface support wall 29.

As shown in FIGS. 1, 7 to 9, the exhaust chamber 16 includes a box-shaped exhaust filter mounting portion 33 having an opening 32 formed in the upper portion thereof which is opened when the exhaust portion cover 31 is opened.
is formed, and this exhaust filter mounting part 33 has a draft angle on the molding which is widened on the upper surface opening 32 side, and the opening 3
The width dimension L2 on the inner end side is shorter than the width dimension 1-1 of No. 2. Grid-shaped ventilation portions 36 and 37 are formed in the front wall portion 34 and rear wall portion 35 of the exhaust filter mounting portion 33. The exhaust filter mounting portion 33 has engaging protrusions 39 that prevent the exhaust filter 38 from being reversed and incorrectly inserted in the front and back directions, facing the lower half of the rear portions on both sides, at the top and bottom in the direction in which the exhaust filter 38 is inserted. It is formed in the direction.

Further, as shown in FIGS. 2 to 6, the exhaust filter 38 consists of a pair of holding frame members 40 of the same shape divided into two parts.
．． 40, and a filter member 42 that is adhesively fixed to the inside of the holding frame 41 while keeping the periphery airtight. This holding frame member 40.40 is formed in a substantially U-shape, and the length dimension L3 of one end side 43 of this holding frame portion 140.40 is
is longer than the length L4 of the other end side portion 44, and the holding frame 41 formed by joining this holding frame member 40°40
Both side edges of are formed so that the upper width dimension on the insertion rear end side is wider than the lower width dimension on the insertion front end side, in accordance with the molded draft angle of the exhaust filter mounting part 33. The intermediate side portion 45 between the side portions 43 and 44 is inclined in accordance with the draft angle of the exhaust filter mounting portion 33, and the inner surface of the intermediate side portion 45 of this holding frame member 40 and 40 is inclined in the width direction. A meat relief vortex portion 46 is formed in the center, and a filter fixing surface is formed at the center in the widthwise direction of the inner surface of both end sides 43 and 44, and protrudes so as to be approximately perpendicular to the inner surface of the intermediate side 45. 47 is formed. In addition, each holding frame member 40
．． Projecting edges 48 , 48 are formed on both end sides 43 , 44 of the 40 and both inner surfaces of the intermediate side 45 .
The inner surface of the flange 48.48 of 3.44 is formed into a chamfered surface 49 that serves as an injection part for the adhesive. Further, a protrusion 51 that becomes a first engaging portion is provided on one end side of the joint surface of the end faces of both end sides 43.44 of this holding frame member 40.40, and the protrusion 51 is provided on the other end side. A recess 52 is formed for insertion and engagement. Further, an engagement concave portion 53 serving as a second engagement portion is formed on the outer surface side of one end side of the joint surface of the end face of both end sides 43.44 of this holding frame member 40.40, and each engagement concave surface 53 has an engaging protrusion 54 protruding from the engaging protrusion 53, and has an engaging hole 55 on the outer surface of the other end that is engaged with the engaging concave surface 53 and engages the engaging protrusion 54. Katabe 5
6 is formed. Note that the central protrusion 51 and recess 52 are formed at the filter fixing surface 47.

Further, a projecting edge 58.A seal backing 57 is wound around and fitted to approximately the center of the outer periphery of the holding frame member 40.40 in the thickness direction.
A projecting edge 58.58 is formed into an annular shape when assembled to the holding frame 41.

Furthermore, the outer surface of the intermediate side 45 of the holding frame member 40.40 on the one end side 43 side is engaged with an engaging protrusion 39 for preventing the exhaust filter N-tube section 33 from being reversed and incorrectly inserted in the vertical direction. A protrusion 59 is formed to determine the mounting direction of the exhaust filter 38 and prevent incorrect insertion in the vertical direction.

In addition, the filter member 42 is a high-density, high-efficiency filter member (0.3 mDOP, collection efficiency of 99.97% or more),
The filter member 42 is formed by bending a sheet-like body mainly composed of ultra-fine glass fibers and a mixture of metal fibers such as copper into a substantially wavy shape. It has antibacterial properties.

Further, a seal backing (not shown) is provided on the inner surface of the exhaust section lid 31 and comes into contact with the periphery of the opening 32, so that the opening 32 is airtightly opened by the exhaust section lid 31. ing. Further, as shown in FIGS. 7 and 9, this exhaust section cover 31 is engaged with a recessed engagement portion 60 formed on one side of the frontage portion 32 of the exhaust chamber 16 on one side. The exhaust section lid 31 has an engaging protrusion g61 for fitting, and a hole 62 for screw attachment is formed on the side of the exhaust section cover 31. The screw 63 inserted through the hole 62 is screwed into the screw hole 64 on the periphery of the opening 32 to connect the engaging portion 60 on one side and attach the screw on the other side. When the opening 32 of the exhaust chamber 16 is closed, the lip-shaped portion 65 protruding from the inner surface of the exhaust section lid 31 is pressed against the seal backing 57 of the Moeki fresh air filter 38, and this seal backing 57 closes the exhaust chamber 16. The entire periphery of the exhaust filter 38 is held in airtight contact with the seal backing 57.

In addition, the electric feeder 111fi storage section 13 of the release hook main body 11
1 and 9 located in the upper part of the exhaust chamber 1G and in a part of the exhaust chamber 1G.
As shown in FIG. 10 and FIG. This exhaust part utility body 31 is disposed in an accessory storage space 67. In this accessory storage space 67, accessories 68 such as a floor brush and a hanging spout are stored. A storage lid G6 that closes off this accessory storage space 67 is attached to the upper rear side of the cotton removing body 11 at @69 so that it can be opened and closed.
A clamp part 70 is provided at the front part.

Furthermore, a lattice-shaped exhaust section 71 is formed on the rear surface of the vacuum cleaner main body 11 at the rear of the exhaust chamber 16.
An exhaust cover 72 is provided on the rear side so that it can be opened freely, and a grid-shaped ventilation section 73 is formed in this exhaust cover 12.

On the inner surface of the exhaust cover 73, there is a deodorizing filter made of a sharp odor agent such as activated carbon made of polyester resin m fibers, polypropylene resin fibers, etc., which is kept in one piece by heat sealing, or a particulate air freshener. Polyester resin mN and polypropylene resin! An exhaust filter 74 having deodorizing properties, such as an aromatic filter formed by laminating multiple layers of materials and heat-sealing to maintain its shape, is removably attached. The exhaust cover 72 is rotatably supported by a shaft 81 at the lower rear surface of the cleaner main body 11.

Further, a flexible wheel 75 is provided at the front lower part of the vacuum cleaner main body 11, and a rear width wheel 7G is provided at both rear sides, and a part of this rear wheel 7G protrudes rearward. The support legs 77 protruding from the rear surface of the main body 11 allow the main body 11 to be supported in an inverted position with the rear side facing down.

Further, a grip portion 78 is formed on the front part of the vacuum cleaner body 11, seven handles are rotatably provided on the upper surface of the vacuum cleaner body 11, and a bumper is provided on the outer periphery of the vacuum cleaner body 11. 80 are provided.

Next, the operation of this embodiment will be explained.

A method of assembling the exhaust filter 38 will be explained.

When assembling the holding frame 41, each holding frame member 40, 4
When the butt joint surfaces of the end faces of both end sides 43 and 44 of 0 are joined, the protrusion 51 which becomes the first engagement part is inserted into the recess 52 and the engagement concave part which becomes the second engagement part. 53 is engaged with the engagement protrusion 56, the engagement protrusion 54 of each engagement concave surface 53 is engaged with the engagement hole 55 of the engagement protrusion 56,
The holding frame members 40, 40 can be assembled with each other without making a mistake in the direction of assembly.

As for both side edges of the holding frame 41 assembled in this way, the holding frame member 40.40 is one side, and the length L3 of 943 is longer than the length 1-4 of the other end side 44.
In accordance with the molding draft angle of the exhaust filter mounting portion 33, the upper width dimension of the C insertion rear end side is formed wider than the lower width dimension of the insertion front end side. When the filter member 42 is fitted inside the holding frame 41, the intermediate portion between both ends of the filter member 42 is stable due to the filter fixing surfaces 47 protruding from the inner surfaces of the end sides 43 and 44, since there is little slope. In this state, both ends of the filter member 42 are bonded with an adhesive and the projecting edges 4 of both end sides 43 and 44 are held in contact with each other.
8. Adhesive is injected from the chamfered surface 49 formed at 48, and the intermediate side 45 of the holding frame member 40.40 is bonded.
A thick adhesive is applied to the inner surface of the filter member 42 to bond both sides of the filter member 42. In this way, the filter member 42 is airtightly adhesively fixed to the inner periphery of the holding frame 41. Next, the protrusions 658.58 formed on the outer periphery of the holding frame member 40.40 are
A seal backing 57 is fitted in between, and the seal backing 57 is wound and fitted to the outside of the holding frame 41. In this way, the exhaust filter 38 is assembled.

Next, a method for installing the exhaust filter 38 will be explained.

Open the storage section lid 66 that closes the accessory storage space 67 of the vacuum cleaner main body 11 and remove the screws 63 to close the exhaust section lid 31.
is removed, the frontage part 32 of the exhaust chamber 16 is spaced, and the exhaust filter 38 is inserted into the exhaust filter mounting part 33.

At this time, if the vertical direction of the exhaust filter 38 is normal,
The protrusion 59 for preventing incorrect attachment in the vertical direction of the holding frame 41 does not collide with the engagement protrusion 39 of the exhaust filter insertion part 33.
The exhaust filter 38 is MW mounted on the exhaust filter mounting portion 33. Further, when the exhaust filter 38 is upside down, the erroneous attachment prevention protrusion 59 of the holding frame 41 abuts against the engagement protrusion 39, and the υ1 air filter 38 is not attached. After inserting the exhaust filter 38, the engaging protrusion 61 on one side of the exhaust section cover 31 is engaged with the engaging part 60, and the screw 63 inserted through the hole 62 is inserted into the opening 32 to attach the screw 63 on the other side. The exhaust chamber 1G is screwed into the screw hole 64 on the periphery of the exhaust section cover 31.
When the opening 32 is closed, the rib-shaped portion 65 protruding from the inner surface of the exhaust section lid 31 is pressed against the seal backing 57 of the exhaust filter 38, and the seal backing 57 is pressed against the inner surface of the active filter mounting section 33. The entire circumference of this exhaust filter 38 is in contact with the seal backing 5.
The upstream side of the exhaust filter 38 on the side of the electric blower storage section 13 and the downstream side of the exhaust chamber 16 are airtightly partitioned by a seal backing 57, and the exhaust section The seal backing on the inner periphery of the lid body 31 is located at the periphery of the opening 32 and is pressed against the bottom of the accessory storage space 67, so that the opening 32 of the exhaust chamber 16 is sealed.

Then, the user takes out the necessary accessories 68 and closes the storage lid 66. Further, an exhaust filter 74 is installed inside the exhaust cover 72 of the exhaust chamber 16 to close the exhaust cover 72.

Then, open the dust collection unit lid 17, attach the perforated plate part 19 of the dust collection filter 14 to the inside of this lid 17, and connect the mouth part of this dust collection filter 14 to the suction port 18 airtightly to collect dust. The lid 17 is closed, the shutter 21 of the suction port 18 is opened, a suction hose connection pipe is connected, and an extension pipe, a suction brush, etc. are connected to the suction hose connected to this connection pipe.

When the electric blower R12 is driven in this state, the dust flowing into the dust collecting section 15 from the suction port 18 is captured by the dust collecting filter 14, and the air filtered by the dust collecting filter 14 is further treated with deodorizing antibacterial agent. It is filtered by the treated one-nub dust collection filter 25, deodorized, and sucked into the suction side of the electric blower 12, and exhausted from the discharge side of the electric blower 12 to the exhaust chamber 16. The fine dust contained in the exhaust air is further removed by the high-density and high-efficiency exhaust filter 38.
．． 37JIDOP is filtered with a collection efficiency of 9997% or more, and the exhaust air is further passed through an exhaust filter 74 having deodorizing properties to be deodorized such as fili back or fragrance, and then to the exhaust section 71.
The air is exhausted from the ventilation section 73 of the exhaust cover 72 through the air.

Note that the exhaust air that has passed through the exhaust filter 38 is sterilized and sterilized by metal fibers such as copper mixed in the exhaust filter 38 of the exhaust chamber 16, and mold spores and fungi that have adhered to the exhaust filter 38 are sterilized and sterilized. This prevents the proliferation of bacteria and bacteria cells, thereby preventing clogging and increasing pressure loss, increasing the durability of the exhaust filter 38, and making it possible to use it for a long time.

Also, when the vacuum cleaner is not in use, the rear wheel 7G and the vacuum cleaner body 1
The cleaning brush main body 11 can be supported upside down with the rear side facing downward by the supporting legs 77 protruding from the rear surface of the cleaning brush main body 11.

〔Effect of the invention〕

According to the present invention, in a vacuum cleaner in which an exhaust filter of 5A is detachably attached to an exhaust part formed on the positive pressure side of an electric blower room through an opening provided in the cleaner body,
Both side edges of the holding frame, which is airtightly attached around the filter member of the exhaust filter, can be easily adjusted to the draft angle on the molding of the exhaust filter mounting part by joining a pair of holding frame members of the same shape. This pair of holding frame members can be formed into a matching shape, and since the joints of the holding frame members are aligned with each other in the hw and w directions toward the exhaust filter mounting part, the draft angle of the exhaust filter mounting part is avoided when the rice filter is inserted. When the holding frame members are inserted with lateral pressure in the direction in which they are joined to each other, and the joints of the holding frame members are formed in a direction perpendicular to the insertion direction, when installing the JJl air filter, there is It does not come off, the assembly strength is increased, the structure is simple and inexpensive, and the exhaust filter is easy to install, making it possible to obtain a vacuum cleaner with high exhaust cleanliness in a small size and at low cost.

Further, according to the present invention, the engaging portions of the pair of holding frame members forming the holding frame of the exhaust filter are formed on the abutting joint surfaces and the protruding portions restrict the direction of engagement with each other. Since the holding frame member is configured with a recess that engages with the holding frame member, the holding frame member can be assembled reliably and easily without making a mistake in the vertical direction.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of a vacuum cleaner showing an embodiment of the present invention, and FIG. 2 is a perspective view of a holding frame member of the exhaust filter.
Figure 3 is a partially cutaway front view of the same exhaust filter as above, Figure 4 is a partially cutaway plan view of same as above, Figure 5 is a right side view of the same as above holding frame member, and Figure 6 is same as above. A left side view, FIG. 7 is a rear view of the exhaust filter mounting part of the above, FIG. 8 is a perspective view showing the state in which the same as the above exhaust filter is installed, FIG. 9 is a perspective view showing the state in which the same as the above exhaust filter is installed, 10th is a perspective view of the same vacuum cleaner as above. 12...Electric blower, 13...Electric blower storage section, 14
...Dust collection filter, 15..Dust collection section, 16..Exhaust chamber,
32...Opening of exhaust filter attachment part, 38...Exhaust filter, 40...Holding frame member, 41...Holding frame, 51
... Protrusion that becomes the first engagement part, 52... Recess that becomes the first engagement part, 53... Engagement concave part that becomes the second engagement part, 5
6. Engagement protrusion portion serving as the second engagement portion. Japan - (A 1. Indication of the case Patent Application No. 59882 filed in 1988 2. Name of the invention Vacuum cleaner 3. Person making the amendment Relationship to the case Patent applicant 356 Tokyo Electric Co., Ltd. 4. Agent

Claims (2)

[Claims] (1) A dust collector equipped with an electric blower storage section containing a built-in electric blower and a removable dust filter that is located on the negative pressure side of the electric blower storage section and that collects dust sucked in from the suction port. and an exhaust section that communicates with the exhaust side of the electric blower section and the outside, and has a draft angle with a widened opening side that can be opened and closed, and an exhaust filter is installed so that it can be inserted and removed from the opening. a vacuum cleaner body having an exhaust filter attachment part, the exhaust filter is attached to a filter member and the periphery of the filter member in an airtight manner, and the insertion front end side is formed narrower than the insertion rear end side. It consists of a substantially rectangular holding frame having both side edges that match the molded draft angle of the exhaust filter mounting part, and the holding frame of the exhaust filter extends along the direction of insertion into the exhaust filter mounting part of the main body. What is claimed is: 1. A vacuum cleaner comprising a pair of holding frame members of the same shape which are divided into two parts, and each of the pair of holding frame members is formed with an engaging part in which a joint direction is imparted to each other. (2) The engaging portions of the pair of holding frame members that form the holding frame of the exhaust filter include a protrusion that is formed on the abutment surfaces that restrict the direction of engagement with each other, and a recess that engages with the protrusion. The vacuum cleaner according to claim 1, characterized in that the vacuum cleaner is configured as follows.